GYFTA53 [Non-metallic reinforcing member, loose-layer stranded filled type, aluminum-polyethylene bonded sheath, longitudinally wrapped corrugated steel tape armor, polyethylene sheathed outdoor optical cable for communication] The structure of the optical cable is a single-mode or multi-mode optical fiber. It is put into a loose tube made of high-modulus plastic and filled with waterproof compound. The center of the cable core is a non-metallic reinforcing member. vinyl. The loose tube (and filling rope) is twisted around the central strength member to form a compact and round cable core, the gap in the cable core is filled with water-blocking compound, and a layer of polyethylene inner sheath is extruded after being longitudinally wrapped with plastic-coated aluminum tape. Double-sided plastic-coated plastic-coated steel tape is longitudinally wrapped and extruded into a polyethylene outer sheath to form a cable. After the polyethylene middle sheath, a layer of termite-proof nylon sheath is extruded to form a cable.